math help

What is 4/52 + 1/3?

What is 4/52 + 1/3?

Here's how we add

4
52
+
1
3

Step 1

We can't add two fractions with different denominators (the bottom number). So you need to get a common denominator - both bottom numbers need to match. To do this, you'll multiply the denominators times each other... but the numerators have to change, too. They get multiplied by the other term's denominator.

So we multiply 4 by 3, and get 12, then we multiply 52 by 3 and get 156.

4/52 times 3

Do the same for the second term. We multiply 1 by 52, and get 52, then multiply 52 by 3 and get 156.

1/3 times 52

So now our fractions look like this:

12
156
+
52
156

Step 2

Since our denominators match, we can add the numerators.

12 + 52 = 64

Now we have an answer.

64
156

Step 3

Last of all, we need to simplify the fraction, if possible. Can it be reduced to a simpler fraction?

To find out, we try dividing it by 2...

Are both the numerator and the denominator evenly divisible by 2? Yes! So we reduce it:

64
156
÷ 2 =
32
78

Let's try dividing by that again...

Are both the numerator and the denominator evenly divisible by 2? Yes! So we reduce it:

32
78
÷ 2 =
16
39

Let's try dividing by that again...

Nope! So now we try the next greatest prime number, 3...

Nope! So now we try the next greatest prime number, 5...

Nope! So now we try the next greatest prime number, 7...

Nope! So now we try the next greatest prime number, 11...

Nope! So now we try the next greatest prime number, 13...

Nope! So now we try the next greatest prime number, 17...

No good. 17 is larger than 16. So we're done reducing.

There you have it! Here's the final answer to 4/52 + 1/3

4
52
+
1
3
=
16
39
© 2014 Randy Tayler